AVON — The board of education has adopted a calendar for next year tailored specifically for the town after rejecting a school calendar in November prepared by a regional school organization.

The calendar for the upcoming school year was approved unanimously Tuesday. The vote was in marked contrast with the board's action in November when it rejected a proposal from the administration after a contentious debate about erosion of local control.

The calendar proposed in November was prepared by the Capital Region Education Council for 36 school districts in the region. The one approved Tuesday was compiled by the school system.

Under state law, all school systems in Connecticut will have to use a calendar written by regional education collaboratives beginning in the 2016-17 school year. Using those calendars is option for the upcoming 2015-16 school year.

School officials said the idea of a regional calendar is to help school systems save money on transportation and professional development costs. Right now, a school system can be on vacation, but must still provide transportation for students attending vocational and magnet schools that are still holding classes.

Superintendent Gary Mala had supported the CREC calendar, but after the board's vote in November, he revised the proposal and said Tuesday he is satisfied with the new plan.

"This calendar looks very much like this year's, which I think is best for instruction," Mala said.

Concerns about local autonomy continued to be an issue. Mala told the boad that, starting with the 2016-17 school year, the board will have no choice but to follow CREC's regional school calendar. Board members Katharine Zirolli and Ames Shea said at the November meeting they were unhappy that a calendar would be imposed on Avon by a regional group. On Tuesday they said they still feel that way.

Shea said a regional calendar means the town school board cannot take into consideration residents' needs and desires.

"We have not had a regional calendar for years and thus far that has not been a problem," Shea said. "This takes away local control. That's not good for Avon and not good for students."

Under the calendar adopted on Tuesday, the first day of classes for the 2015-16 school year will be on Aug. 26 and graduation at Avon High School would be on June 8.